Titus fire rated diffusers are UL classified and listed in Underwriters Laboratories Fire Resistance Directory. These diffusers meet UL time vs. temperature test criteria and NFPA 90A requirements. The TDCA-FR is a louvered face diffuser that harmonizes with different types of architectural ceilings. It handles a significant amount of air and performs well in VAV systems. The TDCA-FR has movable vanes, which are accessible from the face of the unit, to adjust air discharge patterns either vertically or horizontally.